Problem 1. A quantity of heat is added to the machine shown below, causing the gas to expand and to raise the piston and mass 10cm. The piston is frictionless and leak proof and the expansion may be assumed reversible. The piston has an area of 2 in 2 and weighs 1lbm. The mass m is 2lbm. Atmospheric pressure is 14.7lbf/in2. Calculate the work done by the system in units of ft-lbe when the system is defined by (a) boundary A; (b) boundary B; (c) boundary C Problem 1. A quantity of heat is added to the machine shown below, causing the gas to expand and to raise the piston and mass 10cm. The piston is frictionless and leak proof and the expansion may be assumed reversible. The piston has an area of 2 in 2 and weighs 1lbm. The mass m is 2lbm. Atmospheric pressure is 14.7lbf/in2. Calculate the work done by the system in units of ft-lbe when the system is defined by (a) boundary A; (b) boundary B; (c) boundary C